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Thread: edubuntu ltsp 14.04 as host and windows 8.1 vm

  1. #1
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    edubuntu ltsp 14.04 as host and windows 8.1 vm

    i have installed edubuntu and windows 8.1 in virtualbox. the guest can ping the host and connect to the internet but ubuntu can't ping guest i have disabled firewall as well as looked online and added rules to iptables to allow ping but with no use. please help your help is greatly apperciated

  2. #2
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    Re: edubuntu ltsp 14.04 as host and windows 8.1 vm

    Depending on the networking option you chose for the guest, you will use the IP on different interfaces for the host. Is the guest using bridged or NAT?https://www.virtualbox.org/manual/ch...etworkingmodes
    "Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." Douglass Adams

  3. #3
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    Re: edubuntu ltsp 14.04 as host and windows 8.1 vm

    thanks bashiergui for your reply. so i tried bridged network the host and guest couldn't ping each others so i tried Nat and the output was vm can ping host but host can't ping the vm.
    from the vm i can ping eth0 and wlan0 but from host i can't ping vm at all it says host unreachable.

    that's the output of ifconfig (host)

    eth0 Link encap:Ethernet HWaddr 84:34:97:84:8f:88
    inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
    UP BROADCAST MULTICAST MTU:1500 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

    lo Link encap:Local Loopback
    inet addr:127.0.0.1 Mask:255.0.0.0
    inet6 addr: ::1/128 Scope:Host
    UP LOOPBACK RUNNING MTU:65536 Metric:1
    RX packets:8109 errors:0 dropped:0 overruns:0 frame:0
    TX packets:8109 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:876324 (876.3 KB) TX bytes:876324 (876.3 KB)

    wlan0 Link encap:Ethernet HWaddr 84:a6:c8:81:ad:f3
    inet addr:192.168.0.15 Bcast:192.168.0.255 Mask:255.255.255.0
    inet6 addr: fe80::86a6:c8ff:fe81:adf3/64 Scope:Link
    UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
    RX packets:38586 errors:0 dropped:0 overruns:0 frame:0
    TX packets:37336 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:26186906 (26.1 MB) TX bytes:6418923 (6.4 MB)


    the output of ipconfig (guest VM)

    ipv4 10.0.3.15
    subnet mask 255.255.255.0
    Default gateway. 10.0.3.2

    please let me know if there is more info you need to see. your help is much apperciated
    Last edited by pe1992ter; October 18th, 2014 at 06:22 PM.

  4. #4
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    Re: edubuntu ltsp 14.04 as host and windows 8.1 vm

    ipv4 10.0.3.15
    subnet mask 255.255.255.0
    Default gateway. 10.0.3.2
    Okay so if you choose NAT, then what that does is turn your host into the guest's router. That would make the host = 10.0.3.2 as far as the guest knows. The guest can't find the host on the 192.168 subnet because the guest isn't on that subnet and can't have any way to know it exists.

    if you choose to bridge the guest, then both the guest and host will use your router as their gateway. That means they would both be on the 192.168 subnet. And if they ping each other's 192.168.0.X address, they would be able to find each other. If they can't then you must have ICMP blocked on the router, host, and/or guest.
    "Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." Douglass Adams

  5. #5
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    Re: edubuntu ltsp 14.04 as host and windows 8.1 vm

    here is the output of my iptables

    Chain INPUT (policy ACCEPT)
    target prot opt source destination

    Chain FORWARD (policy ACCEPT)
    target prot opt source destination

    Chain OUTPUT (policy ACCEPT)
    target prot opt source destination


    i have tried bridged before i will attach a screen shot as well
    Last edited by pe1992ter; October 19th, 2014 at 03:27 AM.

  6. #6
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    Re: edubuntu ltsp 14.04 as host and windows 8.1 vm

    here is the screen shot in the following link please advice with the soultion your help is reallt apperciated

    http://www.mediafire.com/view/69l59x...-18_221857.png


    Last edited by pe1992ter; October 19th, 2014 at 03:33 AM.

  7. #7
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    Re: edubuntu ltsp 14.04 as host and windows 8.1 vm

    From the link I gave you
    There are four limitations of NAT mode which users should be aware of:ICMP protocol limitations:Some frequently used network debugging tools (e.g. ping or tracerouting) rely on the ICMP protocol for sending/receiving messages. While ICMP support has been improved with VirtualBox 2.1 (ping should now work), some other tools may not work reliably.
    Can you ftp or telnet or ssh between host and guest? Try to connect with some service that uses TCP. That way we can determine if it's networking or ICMP that's broken.
    "Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." Douglass Adams

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